An explanation of the relative size of atoms.
Understanding the electronic structure of an atom.
How to express the electronic structure of atoms using electron configuration notation.
How an atom's outermost electrons contribute to bonding.
The structure of the atom.
How unstable nuclei capture electrons.
Understanding the structure and history of the atomic nucleus
The laws of physics are not affected by varying amounts of inertia.
Using atomic mass to understand isotopes.
Understanding the exceptions to electron configuration.
The history of atomic models.
How kinetic and potential energy exist in atoms.
Understanding the atomic emission spectra.
The meaning and uses of atomic numbers.
The periodic trend of atomic radii.
How to identify a specific electron in an atom's electron cloud using quantum numbers.
Understanding quantization of charge